National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Redox Blemishes--Their Cause and Prevention.

COM7350661

Publication Date	1970
Personal Author	McCamy, C. S.; Pope, C. I.
Page Count	6
Abstract	A type of small spots and character-associated defects on same microfilm were investigated by a variety of techniques. The blemishes result from the displacement of image silver by an oxidation-reduction reaction caused by peroxides and other gaseous products of degradation of the paper cartons in which the films are stored. A method of producing blemishes for test purposes was developed. Recommendations cover the materials, processes, and storage conditions for microfilm preservation of records of permanent value.
Keywords	Microfilm Corrosion prevention Photographic images Spotting Document storage Oxidation reduction reactions Photographic materials Packaging materials Reprints
Source Agency	Invalid Source Agency Code
NTIS Subject Category	82B - Photographic Techniques & Equipment
Corporate Authors	National Bureau of Standards, Washington, D.C.
Supplemental Notes	Pub. in Proceedings of National Microfilm Association, Boston, Mass., 7 May 69.
Document Type	Journal Article
Title Note	Final rept.
NTIS Issue Number	197319

Redox Blemishes--Their Cause and Prevention.

Redox Blemishes--Their Cause and Prevention.
COM7350661

Publication Date	1970
Personal Author	McCamy, C. S.; Pope, C. I.
Page Count	6
Abstract	A type of small spots and character-associated defects on same microfilm were investigated by a variety of techniques. The blemishes result from the displacement of image silver by an oxidation-reduction reaction caused by peroxides and other gaseous products of degradation of the paper cartons in which the films are stored. A method of producing blemishes for test purposes was developed. Recommendations cover the materials, processes, and storage conditions for microfilm preservation of records of permanent value.
Keywords	Microfilm Corrosion prevention Photographic images Spotting Document storage Oxidation reduction reactions Photographic materials Packaging materials Reprints
Source Agency	Invalid Source Agency Code
NTIS Subject Category	82B - Photographic Techniques & Equipment
Corporate Authors	National Bureau of Standards, Washington, D.C.
Supplemental Notes	Pub. in Proceedings of National Microfilm Association, Boston, Mass., 7 May 69.
Document Type	Journal Article
Title Note	Final rept.
NTIS Issue Number	197319